[lwip-users] ppp: What is the meaning of getting PPPERR_CONNECT in link_status_cb

[Axel Lin]

Hi,
Now I tried some different SIM cards on my device.
One of the SIM card always fails and I got PPPERR_CONNECT.
I double checked my code and settings but still don't figure out which
part is wrong.
(It works if using other SIM cards.)
Now I'm not sure which part needs to be checked.
Appreciate for any suggestions.

PS. I tried that SIM card on USB dongle and it works with the same
APN/username/password.

Thanks,
Axel